Luggage strap buckle



FIG. 1 is a perspective view of a luggage strap buckle that has the design.

FIG. 2 is a top plan view of the luggage strap buckle.

FIG. 3 is a bottom plan view.

FIG. 4 is a left-side elevation view.

FIG. 5 is a right-side elevation view.

FIG. 6 is a front elevation view; and,

FIG. 7 is a back elevation view.

The broken lines illustrate portions of the luggage strap buckle that form no part of the claimed design.

Any elements of the luggage strap buckle that are not clearly disclosed are not part of the claimed design. 

CLAIM The ornamental design for a luggage strap buckle, as shown and described. 